An Empirical Analysis of Common OCI Runtimes' Performance Isolation Capabilities

Industry and academia have strong incentives to adopt virtualization technologies. Such technologies can reduce the total cost of ownership or facilitate business models like cloud computing. These options have recently grown significantly with the rise of Kubernetes and the OCI runtime specification. Both enabled virtualization technology vendors to easily integrate their solution into existing infrastructures, leading to increased adoption. Making a detailed decision on a technology selection based on objective characteristics is a complex task. This specifically includes the instrumentation of performance characteristics that are an important aspect for a fair comparison. Moreover, a subsequent quantification of the isolation capability based on performance metrics is not readily available.